Shock absorber



Feb. 19, 1924. 1,484,338

` G. A. NOETZEL .SHOCK ABSORBR Filed July 18. 1921 sheets-sheet 1 I NVEN TOR.'

A TTORNEY'.

. 1,484,338 G. A. NOETZEL 'saocx ABsoRBER Filed July 18. 1921 2Sheets-Sheet 2' ATToRNEY.

Patented Feb. 19, i924.

GSTAV A. NOETZEL, l01? VAUKESEA, WISCONSIN, ASSIGNGR T0 PRESSEDYMETALMFG. CO., 0F WAKESHA, WISCONSIN, A CGRORATION OF WISCONSIN.

SHOCK ABSORBER.

Application led July 18, 1921.

to shock absorbers for cars of the Ford typev having transverse leafsprings over the axles or leaf springs and spring supporting membersapproximately parallel therewith.

Its main objects are to ease the action of and check or reduce therecoil of the springs, thereby causing the body of thevehicle to ridemore easily and smoothly; to facilitate the application of the device toa car; and

generally to simplify and improve the construction and operation ofshock absorbers of this kind.

It consists in the construction, arrangement and combination of parts ashereinafter particularly described and pointed out in the claims.

In the accompanying drawing like characters designate the same parts inthe several gures.

Figure 1 is a side elevation of a shock absorber vembodying theinvention as applied to the front axle and spring of a Ford car; Fig. 2is a plan view of the same; Fig. 3 is a cross section on the line 33,Figs. 1 and 2;V Fig. 4 is a similar section on the line 4-4, Figs. 1 and2 5 Fig. 5 is a side elevation similar to Fig. 1, of the shock absorberas applied to the rear axle or axle housing and spring of a Ford car;and Fig. 6 is a plan view of the rear volute-spring eat forming a partof the device shown in A lglleferring to Figs.V 1 to 4 inclusive, thedevice comprises a forked angular or elbowshaped lever, preferablyconstructed of two similar metal plates or bands 1, the middle portionsof which are bent towards each other and are rivetedor fastened to an-inverted U-shaped connecting and spacing member 2. The plates or bands1 form fork arms 3k and 4 at the ends of the lever.` The Y. arms 3 arepivotally connected by a bolt or pin 5 with the upper end of a springperch V6, such as are used in Ford cars for sus- Serial Nfo. 465,417.Y

pending the front spring 7. with shackles 8 over the front axle 9, theperch 6, which is reversed or turned outwardly from its usual position,serving as a'fulcrum member for the lever, and the axle 9 as asupporting member for the shock absorber spring as well as for the leafspring of the car.

The connecting and spacing member 2, is provided as shownv in Fig. 3,with a transverse'sleeve 11.,.the bore of which registers at theV endswith holes in the lever plates or bands 1, to form a bearing for theupper f p'in or bolt of the shackle 8, which is .provided with a bushing12. rEhe lever is preferably provided with an oil or grease cup V13, theneck of which'is threaded in the member 2, extends "through said member.into an opening in the vsleeve 11, and communicates with an oil hole'inthe bushing l2.

The fork arms 4 at the inner end of the lever are curved orbentdownwardly towards the axle 9, to straddlethe spring 7, which passesfreely between them, and are ing against the under side of the spring,as shown in Fig. 4 or forming bearings below the leaf spring.

A coil-spring 17, volute form of a flat steel band, is interposedbetween'the axle or spring supportthe spring, and with downwardlyprojecting Vflanges or lugs 21, embracing the axle or spring supportingmember 9, as shown in Fig. 1.

vpreferably made 'in offset towards each other, the offsets 15 bear-Theseat plate 19 is formed or provided with an outwardly projecting arm22, resting on the top of the axle or spring supporting member 9, andbolted `or fastened thereto with the spring perch or fulcrum member 6.

In the formation of the volute spring 17',`

the band of which the lspring is made, is

coiled iatwise around and perpendicular to Y the axis of the spring, sothat the smaller convolutions'will telescope into the larger to engageat its opposite en d with the fork arm offsets of the lever opposite theleef spring.

6. In a shock absorber the combination of a forked elbow lever formedfor pivotal connection at one end with a ulcrum member and between itsends with a lSpringbrshaclrle, the fork arms at the other end of thelever being offset towards each other below a leef spring passing freelybetween them and connected at its end with the shackle, a spring seatadapted to be mounted on 'e sprngsupportng member and having' en ermadapted to be fastened with "said ulerum member to said springsupportin` 15!V In witness whereof I hereto eiix my sig- 20 i nature.

- GUSTAV A. NOETZEL,

